April 29, 2022 Letting 12:00 PM
089-60T46

Plans and Special Provisions are not available at this time
Pay Item Report
Electronic Bidding (EBids)

Bulletin Description

(5.45-Mile) Kennedy Expressway Reversible lanes. REVLAC System rehabilitation. The REVLAC system consists of 115 swing gates, 6 arresting barriers and 4 nodal buildings ComCenter controls. Fiber optic cables, and Programmable Logic Controllers (PLC) , (5.45-Mile) Kennedy Expressway Reversible lanes. REVLAC System rehabilitation. The REVLAC system consists of 115 swing gates, 6 arresting barriers and 4 nodal buildings ComCenter controls. Fiber optic cables, and Programmable Logic Controllers (PLC)
Region District DBE % VBP % Federal Project #
1 1 Pending Pending
County(s) Key Route(s) Marked Route(s) Section(s) State Job #(s) PPS #(s)
  • Cook
  • C-91-152-12
  • 1-78992-0000
Contract Specifics
No More Contract Specifics

Ask Subscribe Questions and Answers (87 Submitted / 87 Answered ) Questions not accepted as of April 19, 2022 04:30 PM.

  • The special provision for "Reversible Lane Access Control Operation Incentive / Disincentive Payment Plan" seems to reference 120, 229, and 230 working or calendar days interchangeably. Please confirm the REVLAC system is allowed to be shut down for 229 consecutive calendar days and that incentives / disincentives begin in accordance with 229 calendar days.
    230 days. The discrepancy has been corrected in Addendum C. (04/25/2022)

  • SC-41: Are the selector switches in the buildings existing?
    The selector switches in the buildings are existing switches. (04/25/2022)

  • Item X7013820 TR Cont Surveillance Expressway has 549 Calender days. With the minimal amount of staged traffic control will this item be necessary. It has a great cost to it.
    Contractor shall review the MOT plans and bid this item based on the level of effort anticipated. (04/25/2022)

  • (Part 2) Is it the Department’s intention to have the contractor include the cost for all fiber optics cable and infrastructure required between each of the buildings and each of the Remote IO cabinets, or are these items to be paid separately using the specific pay items for fiber, duct, etc.? If the individual pay items are to be used, then what material is the Department stating will need to be provided?
    The fiber optic cable/conduit required to between the five nodal building to the Control Logix PLC racks to the roadway remote Point I/O racks will paid under line item X8710054 "FIBER OPTIC CABLE, 12 FIBERS". Fiber optic cables/conduit materials internal to the five nodal buildings or remote I/O cabinets will be included under the REVLAC COMMUNICATIONS AND NETWORK HARDWARE AND SOFTWARE item. Fiber material submittal shall be included in the procurement materials packet with the other items listed under REVLAC COMMUNICATIONS AND NETWORK HARDWARE AND SOFTWARE Construction Requirements (b). (04/25/2022)

  • (Part 1) Page 287 of the Special Provisions for REVLAC Communication and Network Hardware and Software states that “All fiber optic cable/conduit material required to interface the nodal building (all 5 nodal buildings) ControlLogix PLC racks to the roadway remote Point I/O racks are also included in this special provision.
    The fiber optic cable/conduit required to between the five nodal building to the Control Logix PLC racks to the roadway remote Point I/O racks will paid under line item X8710054 "FIBER OPTIC CABLE, 12 FIBERS". Fiber optic cables/conduit materials internal to the five nodal buildings or remote I/O cabinets will be included under the REVLAC COMMUNICATIONS AND NETWORK HARDWARE AND SOFTWARE item. Fiber material submittal shall be included in the procurement materials packet with the other items listed under REVLAC COMMUNICATIONS AND NETWORK HARDWARE AND SOFTWARE Construction Requirements (b). (04/25/2022)

  • Is there new 120V power from the REVLAC buildings to the DMS Control panels, or is that all existing?
    New 120Vac ups backed power must me run from the REVLAC buildings to the DMS roadside control cabinets. (04/25/2022)

  • Plan sheet 158 (E-02) refers to locating rebar (rebar detector or other approved procedure) when opening or penetrating concrete. How will this be paid for?
    Locating rebar to be covered under CONCRETE REMOVAL (SPECIAL), CONCRETE STRUCTURES (SPECIAL). (04/25/2022)

  • Since the ControlLogix Processors and communications modules for this system have already been installed under a previous contract, what processors and communications modules are expected to be utilized for any of the shop acceptance testing, and who would be financially responsible for procuring these?
    Specifically for development of PLC program by the integrator and shop testing: The contractor shall procure and use 2 spare control logix racks, 2 spare control logix processors, 2 spare power supplies and required communication modules to simulate the PLC program of one nodal building at a time. Agreed, inter processor communication between the nodal buildings cannot be tested in the shop test. These spare components shall be turned over to IDOT after project completion. These spare components are paid for under the following pay items REVLAC CONTROL SYSTEM HARDWARE AND SOFTWARE, BUILDING A REVLAC CONTROL SYSTEM HARDWARE AND SOFTWARE, BUILDING C REVLAC CONTROL SYSTEM HARDWARE AND SOFTWARE, BUILDING D REVLAC CONTROL SYSTEM HARDWARE AND SOFTWARE, BUILDING E REVLAC CONTROL SYSTEM HARDWARE AND SOFTWARE, HEADQUARTERS (04/25/2022)

  • Referring to the previous questions, what are the physical size and voltage requirements for the shop acceptance testing? Is 480VAC required to operate up to 117 gates and 6 barriers?
    The physical swing gate, barrier and DMS sign are not required for the shop testing phase. Only control system components, PLC programming sequence, network configuration/ diagnostics and HMI server/client functionality shall be simulated/tested in the shop testing phase. 480 VAC source is not required. Regular control voltage 120VAC and 24VDC is required. (04/25/2022)

  • What percentage of the physical system devices is the Department expecting to test during the shop acceptance testing?
    The physical swing gate, barrier and DMS sign are not required for the shop testing phase. All control system components, PLC programming sequences, network configuration/ diagnostics and HMI server/client functionality shall be simulated/tested in the shop testing phase. (04/25/2022)

  • Page 297 of the Special Provisions for REVLAC Control System Phased Testing and Commissioning states that “The Contractor shall provide a facility large enough to allow ESP and the Department to conduct simulation testing/configuration of the entire REVLAC control system hardware/PLC controls sequence”. Is it the Department’s intent to physically connect every network ring, Remote IO cabinet, Swing Gate, Barrier, Sign and Local building IO panel in one location for this testing?
    The physical swing gate, barrier and DMS sign are not required for the shop testing phase. Only control system components, PLC programming sequence, network configuration/ diagnostics and HMI server/client functionality shall be simulated/tested in the shop testing phase. (04/25/2022)

  • Plan sheet 158 (E-02) details the new cabling requirements for the new UPS 120VAC feeds to each gate and barrier, with the largest size being #4. Looking at plan sheet 245 (SC-46), it also appears that DMS signs are required to get new UPS 120VAC feeds. What are the cabling requirements and routes for these new feeds?
    E-02 shows the wiring for control power and fiber optic to each gate only. There is not a separate power feed to the Auxiliary LED Signs. Auxiliary LED Power to be obtained from adjunct I/O cabinet. Power to the overhead DMS is not shown in E-02. (04/25/2022)

  • All current approved bidders have received correspondence from one of IDOT’s sole-spec’d vendors that refers to multiple design challenges and engineering concerns that will not allow them to meet the contract stated schedule. Is it the Department’s intent to resolve these issues outside of this contract, or move into this contract knowing that the vendor is unable to provide the needed materials as scheduled, ultimately ignoring these issues and holding the contractor financially responsible?
    It is not the Departments intent to be involved outside of this contract. REVLAC Project (60T46) is being coordinated with two I-90/94 bridge overlay contracts. Coordination allows for the full closure of the reversible lanes to all traffic and allows the REVLAC system to be fully taken offline. Various vendors and suppliers were contacted throughout the design and contract scheduling process. Despite assurances to an even more aggressive schedule the Department worked to advance procurement ahead two months, extended the installation period by one month, and compressed the commissioning and testing schedule to build in additional time before establishing the working days of this contract. The Department’s latest conversation was in February 2022 and when timeframe was again confirmed. (04/25/2022)

  • In the event that the existing anchor points for the existing junction box covers are no longer viable, and wall degradation prevents the installation of new anchors, what would be the Departments intentions, and how would this be paid for?
    Replacement of the covers should be bid according to the Standard Specifications for Road and Bridge Construction, Highway Standards, and the plans and specifications published online. (04/25/2022)

  • If the project must complete in 2023, is the Department asking the contractor to be held financially liable for the ability of manufacturers, that have been selected by the Department, to meet an expedited delivery schedule during a time where all material lead times are extremely volatile?
    REVLAC Project (60T46) is being coordinated with two I-90/94 bridge overlay contracts. Coordination allows for the full closure of the reversible lanes to all traffic and allows the REVLAC system to be fully taken offline. Various vendors and suppliers were contacted throughout the design and contract scheduling process. Despite assurances to an even more aggressive schedule the Department worked to advance procurement ahead two months, extended the installation period by one month, and compressed the commissioning and testing schedule to build in additional time before establishing the working days of this contract. The Department’s latest conversation was in February 2022 and when timeframe was again confirmed. (04/25/2022)

  • Page 11 of the Special Provisions states that the contractor will not be permitted to start work if they cannot prove a certain percentage of material on hand by March 24, 2023. Knowing that this job has an extremely compressed timeline for completion, if the contractor cannot confidently receive enough of the material to begin the job on time, will the Department allow for the work in the reversible lanes to be delayed until April of 2024 without liquidated damages?
    The Contractor is intended to meet all the requirements and dates of the contract. The intent of halting removal of the REVLAC system components if sufficient materials have not been procured is intended as a benefit the motoring public only, not as a means to extend the duration of the contract or a means to avoid liquidated damages outlined in this contract. The Department needs the ability to restart reversible lane operation on November 17, 2023 and reserves the right to delay removals if the Department believes that the Contractor would not be able to meet these dates. (04/25/2022)

  • Page 297 of the Special Provisions for REVLAC Control System Phased Testing and Commissioning states that “The Contractor (ESP) shall be onsite during the 60 day observation test period to provide technical assistance as needed”. Is ESP expected to be onsite for the entirety of the 60 day observation period, or would remote assistance be acceptable?
    ESP would need one (1) PLC/HMI Engineer to be present onsite for the entire period of 60 days (04/25/2022)

  • The Special Provisions for “REVLAC Control System Hardware and Software” makes repeated reference to Roadside Panels. The only reference to these Roadside Panels found in the plan sheets detailing the DLR network rings. What do these Roadside Panels entail, and will detailed drawings be provided showing the contractor the expected scope of work at each location, including Remote IO wiring and any required materials or cabinets?
    No details regarding the roadside panels were available during design. Hence, contractor shall assume the panel layout, BOM, power ladder of the roadside panel remote I/O cabinet to be the same as the restraining barrier remote I/O cabinet (for all 16 roadside panels). The mounting detail and control wiring details shall be developed by the contractor upon field verification of the existing roadside panels and submitted to the engineer for approval. These materials and design/shop drawing submission for these 16 roadside panels are paid for under pay item REVLAC CONTROL SYSTEM, COMMUNICATION, AND NETWORK HARDWARE, REMOTE I/O CABINET (04/25/2022)

  • Page 280 of the Special Provisions titled “REVLAC Control System Hardware and Software” states that the contractor shall furnish and install new and completely assembled input/output (IO) cabinets for local interface to swing gates, barrier and signs and the development of new electrical schematics for each nodal building system. Is it the Departments intent to have the contractor also serve as the design engineer with regards to the electrical schematics?
    No. The contractor shall submit electrical control schematic shop drawings for each REVLAC building PLC/VDT enclosure to engineer for approval. (04/25/2022)

  • Page 217 of the Special Provisions provides specifications for various LED Auxiliary Signs. Is the Department going to provide plan sheets detailing the electrical/mechanical/physical characteristics of these signs prior to bid? There is not enough information provided in the special provisions to bid this item.
    No additional plans will be provided. The project should be bid according to the Standard Specifications for Road and Bridge Construction, Highway Standards, and the plans and specifications published online. (04/25/2022)

  • Can the Department provide a detailed plan sheet associated with the concrete removal and replacement pay item, including rebar details?
    Limits will determined by the Engineer in the field. (04/25/2022)

  • Plan sheets EB-06 thru EB-09 call out the installation of NEMA Size 1 starters for Unit heaters, exhaust fans and A/C units. The single line drawings E-04 thru E-10 only show Non-fused disconnects for these devices. Which sheets are correct?
    Single Line drawings E-04 through E-10 provide power only. For additional criteria related to these items refer to EB-06 through EB-09 (04/25/2022)

  • The special provisions for Pay Item X8710036 – Fiber Optic Cable, 12F SM direct the contractor to use an blown cable technique to place the fiber optic cable. While this may be possible on the ITS portion of the project, it does not appear that this is feasible for the REVLAC portion of this job. Will the Department provide additional pay items to cover the multiple installation techniques that will be required on this job?
    No addition pay items will be provided. At their choosing and as approved by the engineer the Contractor can install REVLAC fiber optic cables through alternate means. (04/25/2022)

  • Will the Department provide detailed drawings of the various Junction Box Covers, including required mounting holes prior to bid?
    Field verification will be required for exact junction box cover numbers. The diagram E-80 added in Addendum C provides information to support the bidding process. (04/25/2022)

  • Page 108 of the special provisions refers to the Junction Box Cover Replacement pay item. Will the Department provide a table detailing the quantities, sizes and material makeup of these junction box covers prior to bid?
    A table of quantities is not available. Field verification will be required for exact junction box cover numbers. The diagram E-80 added in Addendum C provides information to support the bidding process. (04/25/2022)

  • Has IDOT involved any of the sole-spec’d vendors (ie. B&B Roadways or Impact Technologies) regarding their ability to meet these project timelines with regards to material procurement?
    REVLAC Project (60T46) is being coordinated with two I-90/94 bridge overlay contracts. Coordination allows for the full closure of the reversible lanes to all traffic and allows the REVLAC system to be fully taken offline. Various vendors and suppliers were contacted throughout the design and contract scheduling process. Despite assurances to an even more aggressive schedule the Department worked to advance procurement ahead two months, extended the installation period by one month, and compressed the commissioning and testing schedule to build in additional time before establishing the working days of this contract. The Department’s latest conversation was in February 2022 and when timeframe was again confirmed. (04/25/2022)

  • Has IDOT involved any of the sole-spec’d vendors (ie. B&B Roadways or Impact Technologies) in any of the project engineering or timeline discussions? From discussions with both vendors, there seems to be a large number of unresolved or ignored design issues. How does the department plan to rectify these issues, and will significant delays to the submittal review process be grounds for a time extension on this project?
    REVLAC Project (60T46) is being coordinated with two I-90/94 bridge overlay contracts. Coordination allows for the full closure of the reversible lanes to all traffic and allows the REVLAC system to be fully taken offline. Various vendors and suppliers were contacted throughout the design and contract scheduling process. Despite assurances to an even more aggressive schedule the Department worked to advance procurement ahead two months, extended the installation period by one month, and compressed the commissioning and testing schedule to build in additional time before establishing the working days of this contract. The Department’s latest conversation was in February 2022 and when timeframe was again confirmed. (04/25/2022)

  • Has any structural analysis been completed on the Restraining Barrier foundations or anchor bolts? How will the contractor be paid if these are found to be deficient? More importantly, how will the job’s timeline be adjusted to account for a significant addition like this?
    No. Inspection done in Phase I Report established that foundations are to be reused. Should any deficiencies be suspected, the contractor shall notify the Engineer. Any required repair work will be paid under Article 109.04. See other items related to Contract Coordination, Schedule and operation of the reversible lanes. (04/25/2022)

  • Items 5 and 6 under REVLAC GENERAL WORK on plan sheet 75 (STG-01), refer to the removal of "Existing DC Power Circuit Cable" and "Existing Control Conductors". There do not appear to be any plan sheets that identify the conduits that these are installed in. It also appears to contradict Sheets E-03 thru E-09, as well as the generic install plan on plan sheet E-02. Will the Department provide accurate and field verified cable removal and installation plans prior to bid?
    Existing DC Power/Control conductors are depicted in the For Reference drawings TG-11 through TG-19 and labeled as “CONTROL”. The existing system was constructed per plan. (04/25/2022)

  • Network tables are provided, detailing the majority of the REVLAC control system devices. No information appears to be provided regarding any of the CCTV networking or addressing. This includes both REVLAC process and roadway monitoring cameras. Will the Department provide drawings detailing the interconnectivity and network addressing of all of these prior to bid?
    Due to security concerns, network addressing will not be made public. (04/25/2022)

  • Pay items X1400179 and X0320023 appear to be the same item but are listed at different quantities. The Special provisions also show 2 identical specs for Dome HD camera on pages 70 and 121. Neither of the quantities listed for either of these 2 pay items appear to match the quantity of cameras required on the ITS device schedule on plan sheet ITS-02. Can further clarification be provided regarding which of these are the correct pay item, and at which quantity?
    This was taken care of in Addendum A. (04/25/2022)

  • There appear to be a number of conflicts in the information provided regarding sizing of the cabling for the building generators. Single lines E-5 thru E-10 show the cable schedule C5, while Electrical Site Plans EB-10, EB-11, EB-12 and EB-13 show different information. Which plan set sheets supersede the others?
    Building C and has no apparent conflicts. For Building A and E Contractor shall reference the E plans. Feeder from COMED should match the feeder from generator. (04/25/2022)

  • Note 2 on plan sheet EB-14, which details the generator foundation plan, refers to "plan sheet #38" for details on rebar plan for the generator pad. Plan sheet #38 appears to be soil borings. Please provide a correct plan sheet #38.
    The Foundation Detail shown on Sheet #36. (04/25/2022)

  • The contract dictates that the contractor is to replace all of the IO modules in all of the buildings. Plan drawings are provided for the physical layout of the IO modules, but no wiring details are provided. Is the Department going to issue full IO lists and wiring diagrams?
    I/O lists are provided in the Appendix A that was added in Addendum A, no wiring details are provided in the contract plans. Shop drawings of the wiring details shall be submitted by the contractor to the engineer for approval prior to shop test and installation. (04/25/2022)

  • Is the Department going to issue fiber optic termination plans?
    The Department will not be issuing fiber termination plans. (04/25/2022)

  • Page 289 of the special provisions details the list of routing and connectivity drawings that are required to be provided as as-built drawings by the contractor. Since the majority of these drawings have not been provided by the Department in this plan set, will it be incumbent on the Contractor to develop these design drawings, or will the Department be providing detailed fiber routing, connectivity, network, and physical installation drawings for use and mark-up by the contractor?
    The Contractor will be required to develop these drawings. (04/25/2022)

  • Is the Department going to issue construction drawings that include a detailed cable removal and installation plan for each ramp? There are no detailed drawings comprehensively detailing the existing conduits and cables, nor detailed drawings showing which cables are to be installed in which conduits. Information provided on some drawings seems to contradict others.
    No additional sheets will be provided. The cable removal shall be in accordance with the Demolition Electrical One Line Diagrams. Installation shall be per the Electrical One Line Diagrams and the Wiring Schedule provided on drawing E-02. (04/25/2022)

  • In the event that the existing electrical cables to be removed utilizing pay item 89502300 - Remove Electric Cable From Conduit will not move, and remembering that this job is on an extremely compressed timeline, how is the project schedule adjusted, and the contractor compensated, for the required investigation and subsequent repair work.
    Contractor shall bid item 89502300 assuming that all practical industry techniques to remove the existing cable shall be utilized. REVLAC system cables will not be utilized during the shutdown of the reversible lanes and thus can be removed early in the project to identify damaged conduits. If cables are not able to be removed using industry techniques the barrier wall will be repaired paid for under X5012502 CONCRETE REMOVAL (SPECIAL) and X5030225 CONCRETE STRUCTURES (SPECIAL). Concrete median removal and repair will be measured for payment in cubic yards. Tie bars will be measured as each. Repair of the conduits installed in median barrier wall will be paid for by the conduit type to be repaired separately (04/25/2022)

  • Page 139 of the Special Provisions states that median barrier wall repair work will be covered by various pay items to compensate the contractor for conduit breaks found in the median barrier wall. In the event that conduit breaks are found in areas outside of the median barrier wall, how will the contractor be compensated for these repairs?
    The project should be bid according to the Standard Specifications for Road and Bridge Construction, Highway Standards, the plans, specifications and quantities published online. (04/25/2022)

  • Page 81 of the Special Provisions states that a detailed schedule shall be provided within 10 business days of NTP for a project completion date of November 17, 2023. Due to ever increasing material lead times, combined with the complexity of the work on both the REVLAC system and outside shoulder ITS work, this timeline seems unrealistic. When does IDOT anticipate NTP to be, and is there any consideration to pushing this job until April 2024 to ensure critical material can be procured on time?
    The REVLAC contract cannot be extended. Lane closures associated with this contract are being coordinated with I-90/94 Bridge Overlay contracts. SEE COORDINATION WITH ADJACENT AND/OR OVERLAPPING CONTRACTS for more information. Reversible operation of the reversible lanes must begin November 17th 2023. Beginning April 15th, 2024 the reversible lane will be utilized for inbound traffic only to accommodate the movement of traffic under contract 62K74. (04/25/2022)

  • Page 12 of the Special Provisions refers to liquidated damages of $20,000 per calendar day that the ramp is not open to traffic. Page 8 of the Special Provisions refers to liquidated damages of $10,000 for each calendar day that work is not completed. Can these 2 damages be combined for a potential total liquidated damage of $30,000 per calendar day if the Reversible Lanes are not opened by November 17th, and continued work is required to complete the project?
    Liquidated Damages of $10,000 can be applied for not completing work. An additional $20,000 can be applied for not being able to open the reversible lanes, including all entrances and exits to the reversible lanes. (04/25/2022)

  • On page 12 of the Special Provisions, the contract repeatedly refers to the opening of "the ramp". Elsewhere in this section, the "reversible lanes" are referred to. Is the department using these terms interchangeably, or is each of the 6 ramps in the REVLAC reversible system (OO, OM, OS, IS, IW, & IE) considered its own entity in terms of liquidated damages?
    This was addressed in Addendum C. Specification were clarified to state “reversible lanes including all entrances and exits to the reversible lanes”. (04/25/2022)

  • On page 12 of the Special Provisions, the contract states that "the contractor shall be liable to the department to liquidated damages for each calendar day the ramp is closed to traffic beyond one hundred and twenty (230) consecutive calendar days". Do the liquidated damages apply after 120 or 230 days?
    230 days. The discrepancy has been corrected in Addendum C. (04/25/2022)

  • Page 175 of the special provisions, item (3) of the (h) controls section states that "the local controls shall be enclosed within the swing gate housing and contained within a separate, self-supporting, single lever latch type Nema 4X enclosure". Where can the contractor find the plan sheets associated with this statement?
    The swing gate housing will be provided by the manufacturer with all interior components factory installed. That includes the local control enclosure. The contractor shall install the housing on the barrier wall. (04/25/2022)

  • Plan sheet TG-10A, Swing Gate Housing Detail, Note 2 instructs the contractor to refer to plan sheets TG11-19 for information regarding the electrical and mechanical components in the swing gate panel. Plan sheets TG-11 thru TG-19 are labelled as "For Information Only", and do not show any electrical or mechanical components. What page of the plan sets can the contractor refer to for a detailed drawing of the physical layout of the IO/electrical/mechanical components of the swing gate housing?
    The swing gate housing will be provided by the manufacturer with all interior components factory installed. The contractor shall verify the arrangement of the interior components, with the exception of the IO panel, matches each respective swing gate type as shown on sheets TG-11 through TG-19 when the housing is installed on the barrier wall. (04/25/2022)

  • The specified resistance barrier vendor is stating that they cannot meet the project schedule due to engineering and manufacturing lead times. Would IDOT consider extending the schedule by 6 months?
    No – REVLAC contract cannot be extended. Lane closures associated with this contract are being coordinated with I-90/94 Bridge Overlay contracts. SEE COORDINATION WITH ADJACENT AND/OR OVERLAPPING CONTRACTS for more information. Reversible operation of the reversible lanes must begin November 17th 2023. Beginning April 15th, 2024 the reversible lane will be utilized for inbound traffic only to accommodate the movement of traffic under contract 62K74. (04/25/2022)

  • Please provide the following items for the Remote I/O Cabinets for the (16) Roadside Panels: Mounting Detail, Control Wiring Detail, I/O panel layout, BOM, and Power Ladder.
    As Constructed Drawings are not available. Contractor shall assume the panel layout, BOM, power ladder of the roadside panel remote I/O cabinet to be the same as the restraining barrier remote I/O cabinet (for all 16 roadside panels). The mounting detail and control wiring details shall be developed by the contractor upon field verification of the existing roadside panels and submitted to the engineer for approval. These materials and design/shop drawing submission for these 16 roadside panels are paid for under pay item REVLAC CONTROL SYSTEM, COMMUNICATION, AND NETWORK HARDWARE, REMOTE I/O CABINET (04/25/2022)

  • Page 129 (item #11) of the Specifications refers to "Appendix A for local and remote I/O arrangements". Appendix A could not be found in this document, please provide.
    Appendix A has been added to the end of the Special Provisions in Addendum C. (04/25/2022)

  • Drawing SC-48: Please provide a specification for the relays to be replaced in the DMS Control Cabinets
    Relays are to be replaced in kind or approved equivalent. (04/25/2022)

  • Per plan page 89, where is the ground mounted cabinet to be paid (per detail B)? There is no pay item for this.
    Ground Mounted cabinet modified to be a Pole Mounted Cabinet. All foundations for 334 Cabinets have been removed from this Contract in Addendum B. (04/25/2022)

  • Regarding pay item X5012502, will we be required to remove the full wall section or only concrete required to repair the conduit section?
    The extent of median barrier wall repair will be established in the field with the Engineer. (04/25/2022)

  • Per plan pages 63-66, where is "core drill building wall" to be paid for?
    Core drill building wall will be paid for under GENERATOR, BUILDING ‘X’. (04/25/2022)

  • Per plan page 43, there is a note that states, "mortar repair along foundation", where is this to be paid?
    Mortar repair along foundation will be paid under X0327469 MASONRY FACE BRICK REPAIR. (04/25/2022)

  • Per plan pages 42 & 43, there is a note that states, "apply epoxy sealant to corrugated concrete face and barrier wall", where is this to be paid?
    Epoxy sealant to corrugated concrete face and barrier wall will be paid under X0327469 MASONRY FACE BRICK REPAIR. (04/25/2022)

  • Per plan page 41, the joint repair item is labeled with a unit of measurement of FOOT, but the associated pay item unit of measurement is EACH. Please clarify.
    The Department issued an addendum to address this. Pay Item Z0032400 JOINT REPAIR is measured as EACH per the latest IDOT Coded Pay items. A quantity of 3 EACH will be shown on the plans and incorporated into the pay items. The approximate measurements of the joint repair will continue to be shown on the plans, but item will be paid for as each. (04/25/2022)

  • Per plan page 41, there is no pay item associated with the note, "remove rust and paint metal roof brackets". Where is this to be paid?
    Remove rust and paint metal roof brackets will be paid for under Z0032400 Joint Repair. (04/25/2022)

  • Per spec page134-138, there is no pay item for this spec, "INSTALL CCTV CAMERA LOWERING DEVICE". Please advise where this is to be paid?
    All new lowering devices to be paid for under X1400178 REPLACE EXISTING CCTV LOWERING DEVICE or included with CCTV CAMERA STRUCTURE, GALVANIZED STEEL, OF THE HEIGHT SPECIFIED. This was addressed in Addendum C. (04/25/2022)

  • Per page 63 of the plans, where is the "proposed 277/480V Automatic Transfer Switch" to be paid for?
    The 277/480V Automatic Transfer Switch Item is to be paid under GENERATOR, BUILDING ‘X’. See Specification for information on where new/existing transfer switches will be required. (04/25/2022)

  • Per page 65 of the plans, where is, "connect proposed fence to existing ROW fence" to be paid?
    The connection is to be paid under 66400505 CHAIN LINK FENCE, 8'. (04/25/2022)

  • The bill of material for Building A on Sheet 214 of the plans calls for specific quantities of various Rockwell devices. The single line on sheet 215 of the plans indicates different quantities than shown on the bill of material. Since these are lump sum items, which takes precedent? Is it the quantity of units called out in the bill of materials, or the quantity shown in the single line?
    The quantity shown in the bill of materials and the single line are the same. The bill of materials shown on sheet 214 only pertain to the new components being installed in the particular building PC/VDT enclosure. (04/25/2022)

  • There is no current design or drawing provided for the gate arm return device. (page 168 of specifications) Please provide…
    This gate arm return device is to be designed by the gate manufacturer and meet the criteria as specified. (04/25/2022)

  • The removal plans on Sheets SC-03, 05, 07, 09 & 11 show proposed connections between 1756 modules and equipment shown to be removed. Please clarify which connections will be removed, replaced and which are to be proposed connections.
    DH485 connection to the existing PLC-5 remote I/O will be removed. Ethernet connection to the existing Hirschman switches connecting the nodal buildings and VDT’s will be removed The proposed/replaced connections are detailed in SC-12 ,16,17,18,19,22,23,24, 27,28,29,32,33,34,35,38. (04/25/2022)

  • Are the Allen-Bradley 1756 Modules shown on Sheets SC-03, 05, 07,09 & 11 existing as installed on the previous contract? Or are these to be provided on Contract# 60T46?
    Allen-Bradley 1756 Modules shown on Sheets SC-03, 05, 07,09 & 11 are existing as installed on the previous contract 62F40. (04/25/2022)

  • How are the removals shown on plan sheets SC-02 through SC-11 to be paid for?
    The specification “REVLAC CONTROL AND COMMUNICATION SYSTEMS INSTALLATION” details the removal of control system components in each nodal building and are paid for under pay items listed below REVLAC CONTROL AND COMMUNICATION SYSTEMS INSTALL, BUILDING A REVLAC CONTROL AND COMMUNICATION SYSTEMS INSTALL, BUILDING C REVLAC CONTROL AND COMMUNICATION SYSTEMS INSTALL, BUILDING D REVLAC CONTROL AND COMMUNICATION SYSTEMS INSTALL, BUILDING E REVLAC CONTROL AND COMMUNICATION SYSTEMS INSTALL, HEADQUARTERS (04/25/2022)

  • Sheet 287 of the specifications states that. "All fiber optic cable/conduit material required to interface the modal building Control Logix PLC racks to the roadway remove point I/O racks are also included in this item." Please confirm that all 12-count fiber optic cable will be paid for under line item X8710054 "FIBER OPTIC CABLE, 12 FIBERS", and that this mainline cable is not incidental to the spec noted on sheet 287.
    The fiber optic cable/conduit required to between the five nodal building to the Control Logix PLC racks to the roadway remote Point I/O racks will paid under line item X8710054 "FIBER OPTIC CABLE, 12 FIBERS". Fiber optic cables/conduit materials internal to the five nodal buildings or remote I/O cabinets will be included under the REVLAC COMMUNICATIONS AND NETWORK HARDWARE AND SOFTWARE item. Fiber material submittal shall be included in the procurement materials packet with the other items listed under REVLAC COMMUNICATIONS AND NETWORK HARDWARE AND SOFTWARE Construction Requirements (b). (04/25/2022)

  • Per spec page 280, are only the roadway remote I/O enclosures required, or shall Contract #60T46 be responsible for the PLC work inside the various REVLAC buildings?
    The Contractor shall be responsible for the PLC work inside the various REVLAC buildings under this contract. (04/25/2022)

  • Please provide a detail or plan illustrating the guardrail special proposed plan / layout.
    No changes will be made to the Plans or Specifications. The project should be bid according to the Standard Specifications for Road and Bridge Construction, Highway Standards, and the plans and specifications published online. (04/20/2022)

  • The plans do not appear to show the guardrail removal and proposed guardrail special. Please advise where the proposed guardrail / removal is located. Please provide a schedule of quantities with start/stop stations
    No changes will be made to the Plans or Specifications. The project should be bid according to the Standard Specifications for Road and Bridge Construction, Highway Standards, and the plans and specifications published online. (04/20/2022)

  • Please provide plan sheets 249-261 that were not posted to the letting page.
    The Department is in the process of issuing an addendum, please monitor the website for the addendum. Only 10 sheets were required to include all the necessary plan sheet. The Plan set should have a total of 258 sheets. (04/20/2022)

  • Per the questions answered by the Department on 4/18, site visits to the 5 critical Nodal buildings are not permitted at this time. Since the Department has confirmed in the special provisions that the demolition and wiring plan drawings for the electrical and control system work in each of the Nodal buildings is not all inclusive and that anything required for a working system is incidental to these lump sum pay items, how can any contractor properly capture these items in their bid?
    The 4 REVLAC buildings and IDOT ComCenter will be made available for inspection in the afternoon of Friday April 22nd pending availability of IDOT staff. Contact Nick Tempel at 847-652-1965 no later than Wednesday April 20th for the Friday April 22nd field meeting times and locations. (04/19/2022)

  • Note 1on sheet 158 states that the contractor shall visit the site to familiarize themselves with the existing conditions. This would require access to the various REVLAC buildings, will IDOT coordinate a preconstruction inspection of the buildings so the contractor can ascertain the existing conditions? Failure to provide this access would give an unfair advantage to the current EMC who has access to these buildings under the maintenance contract.
    The 4 REVLAC buildings and IDOT ComCenter will be made available for inspection in the afternoon of Friday April 22nd pending availability of IDOT staff. Contact Nick Tempel at 847-652-1965 no later than Wednesday April 20th for the Friday April 22nd field meeting times and locations. (04/18/2022)

  • Page 280 of the specifications states that the existing PLC processors have been replaced in a seperate contract. Please confirm the extent of the PLC work to be included in Contract #60T46.
    For reference to previous PLC work, please see IDOT contract 62F40. (04/18/2022)

  • Regarding pay items X0320023 and X1400179 - CLOSED CIRCUIT TELEVISION DOME CAMERA, HD, could you please clarify what the difference is between these 2 items?
    The Department is in the process of issuing an addendum, please monitor the website for the addendum. Item X0320023 is the correct pay item to use for HD CCTV cameras. (04/18/2022)

  • Can a site visit be scheduled for Buildings A, C, D and E?
    Site visits are not feasible at this time. (04/18/2022)

  • Tag "F" on sheet E-02 states (4) 12 count fiber optic cables (pay item X8710036). Please confirm the intent is to install (4) individual fiber optic cables in existing conduit in the median wall.
    The intent is to install (4) individual 12 count fiber optic cables in existing median wall conduits. (04/18/2022)

  • Please provide a specification for the door hardware required for pay item X032773 Access Door.
    Per the specification Door and Hardware Institute/American National Standards Institute (DHI/ANSI): a. A115.1, Preparation of Mortise Locks in 1-3/8 IN and 1-3/4 IN Standard Steel Doors and Frames. (04/18/2022)

  • Would an alternate to the specified Hoffman cabinet for the CCTV Cabinet be accepted? We currently manufacture traffic cabinets for IL D1.
    The project should be bid according to the Standard Specifications for Road and Bridge Construction, Highway Standards, and the plans and specifications available online. The successful Contractor may submit alternate cabinets for the CCTV cabinet proposed during the shop drawing review process, but the Department reserves the right to reject any submittals that do not provide equal or greater functionality to the Department. (04/18/2022)

  • Can photos of each building be provided to the contractor, or a pre-bid site visit arranged at each location?
    No photos are available and pre bid site visits cannot be held at this time. (04/18/2022)

  • Please advise how the 15 feet of extended gutter is paid for, noted on sheet 41, note 3.
    Downspout Extensions will be paid for under X0323859 DOWNSPOUT CONNECTION. Per the Downspout Connection specification - The downspout shall be vertically extended to grade level and horizontally extended to route drainage away from the existing foundation and sidewalk. (04/18/2022)

  • Some of the handholes in the ITS plans are referred to as "Communications Vault". Please confirm any handholes are actually Heavy Duty Handholes paid for under pay item 81400200.
    Handholes referred to as “Communications Vault” will be Heavy Duty Handholes Item 81400200. (04/18/2022)

  • There are two pay items for CCTV Dome Camera HD. X0320023 (qty 26 each) and X1400179 (qty 28 each). Is this pay item intentionally included twice, as we can only find 27 CCTV Dome Camera HD in the drawings?
    The Department is in the process of issuing an addendum, please monitor the website for the addendum. Item X0320023 is the correct pay item to use for HD CCTV cameras. (04/18/2022)

  • Is conduit, trenching and cabling for the generator at each building incidental to the generator pay item(s)?
    All site work associated with the installation of the generator will be included with the generator pay item. See GENERATOR, BUILDING ‘X’ Description item (b) (04/18/2022)

  • Should pay item Z0032400 Joint Repair be 280 FOOT instead of 280 EACH listed currently in the schedule of prices?
    The Department is in the process of issuing an addendum, please monitor the website for the addendum. Pay Item Z0032400 JOINT REPAIR is measured as EACH per the latest IDOT Coded Pay items. A quantity of 3 EACH will be shown on the plans and incorporated into the pay items. The approximate measurements of the joint repair will continue to be shown on the plans, but item will be paid for as each. (04/18/2022)

  • There is no pay item for Concrete Removal 50102400 referenced on the median barrier rehabilitation plans. Please advise how the contractor is paid for this work.
    The Department is in the process of issuing an addendum, please monitor the website for the addendum. (04/18/2022)

  • There is no pay item for Tie Bars 1" 44213202 referenced on the median barrier rehabilitation plans. Please advise how the contractor is paid for this work.
    The Department is in the process of issuing an addendum, please monitor the website for the addendum. (04/18/2022)

  • Please provide dimensions and material type for each junction box cover to be replaced so the contractor can bid the pay item accurately (X1400025)
    The size needs to be field verified. Material is polymer concrete and reinforced by heavy weave fiberglass. Unless otherwise indicated shall be as follows Junction Boxes (JB2) for “CCTV” and “Power / Heater” are 17 ¼” L x 16 ¼” W x 14” D and Junction Boxes for “Control” are 21 5/8”L x 11” 5/8”W x 8 ½” D. (04/18/2022)

  • How is removal of temporary paint pavement marking paid for?
    The Department is in the process of issuing an addendum, please monitor the website for the addendum. Temporary pavement markings and thus the removal of the temporary pavement markings have been eliminated from the project. Temporary concrete barrier wall can be placed inside the existing channelizing line negating the need for temporary pavement markings. (04/18/2022)

Authorized Bidders

  • 0080 Aldridge Electric, Inc.
    844 E. Rockland Rd.
    Libertyville, IL 60048
    Phone: (847) 680-5200 Fax: (847) 680-5233 Email: hcullen@aldridgegroup.com

  • 0733 John Burns Construction Company
    999 Oakmont Plaza Drive, Suite 400
    Westmont, IL 60559
    Phone: (708) 638-7642 Fax: (708) 326-3499 Email: lmartinez@jbcco.com

  • 3948 Meade Inc.
    625 Willowbrook Center Pkwy
    Wilowbrook, IL 60527
    Phone: (708) 588-2500 Fax: (708) 588-2501 Email: infraestimating@meade100.com

  • 5832 Sumit Construction Co., Inc.
    4150 W. Wrightwood Ave
    Chicago, IL 60639
    Phone: (773) 276-4600 Fax: (773) 276-4644 Email: No Record

Non Bidders

  • No requests received
Pay Item # UOM Description Type Quantity Unit Price
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The contract details above are for informational purposes only until the Plans and Special Provisions are posted on this web page. If an addendum is posted, the contract details above may be revised. Please continue to check for addenda.